@inproceedings{8ce9db0bcb5242af9b3e583409b80d83,
title = "Hydrogen detection using a transmission based optical fibre sensor in the VIS spectrum",
abstract = "Results are presented for a transmission based optical fibre hydrogen sensor using a thin film layer of Palladium as the sensing element. The thin palladium film was deposited onto a glass substrate via thermal vacuum evaporation. The sensor was tested by exposing the palladium film to 5% Hydrogen gas in a Nitrogen atmosphere. The absorption and desorption of hydrogen causes the optical properties of palladium to change depending on the concentration of hydrogen present in the atmosphere. Using a deuterium/halogen light source in conjunction with a UV/VIS spectrometer the changes in the optical transmittance in the visible spectra of the Pd film was monitored for 5% hydrogen in a nitrogen atmosphere. A comparison of different wavelengths in the VIS spectrum is presented. The response and recovery time for the sensor is shown to be 4-5 seconds and 35 seconds respectively. The sensor is capable of responding to changes of up to 15% and the sensor shows good repeatability to continuous exposure cycles to 5% hydrogen using nitrogen as the carrier and recovery gas.",
keywords = "Hydrogen, Palladium, Transmission spectroscopy, VIS spectrum",
author = "Kevin Gleeson and Elfed Lewis",
year = "2007",
doi = "10.1117/12.738409",
language = "English",
isbn = "0819467618",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "EWOFS 2007 Proceedings",
note = "EWOFS 2007: Third European Workshop on Optical Fibre Sensors ; Conference date: 04-07-2007 Through 06-07-2007",
}